Rock dust blower



FIG. 1 is a front elevational view of a rock dust blower showing our new design;

FIG. 2 is a rear elevational view of the rock dust blower shown in FIG. 1;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a another front elevational view of a rock dust blower in an alternate environment;

FIG. 7 is a rear elevational view of the rock dust blower shown in FIG. 6;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a left side elevational view thereof; and,

FIG. 10 is a bottom plan view thereof. 

CLAIM The ornamental design for a rock dust blower, as shown and described. 